Heat-exchange device



Filed June 23, 1924 INVENTOR.

A TTORNEYS Patented Dec. 8, 1925.

UNITED STATES PATENT OFFICE.

HEAT-EXCHANGE DEVICE.

Application filed June 23, 1924.

To all whom it may concern:

Be it known that I, AARON F. Non'roN, a citizen of the United States, and resident of Los Angeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in a Heat- Exchange Device, of which the following is a specification.

This invention relates to improvements in a fluid circulating element especially adapted for use in transferring heat to or from fluid. The embodiment illustrated herein is especially adapted for use in combination with a tank for the storage of water heated thereby and the supply therefrom to various appliances in a house system.

The main objects of this invention are first, to provide a simple, efficient, and economical unit for heating water, in which a continuous circulation may take place; and second to provide details of structure whereby a simple, durable, grid-like heating unit may be economically constructed by the assembly of conduit members, such as pipes.

These objects together with other objects and corresponding accomplishments are obtained by means of the embodiment of my invention illustrated in the accompanying drawing, in which:

Fig. 1 is a plan view of a heating unit; Fig. 2 is a section as seen on the line 22 of Fig. 1.

Referring more particularly to the drawing, a hollow grid heating unit is shown, wherein a fluid may be introduced at one end and discharged from the other end. The parts are so arranged that the fluid will follow a sinuous path through the unit. A tubular header 3 is spaced from a corresponding header l, the headers being joined by spaced tubular members. The headers may be formed of pipes and one end of header 3 is externally threaded as indicated by to provide for connection to the fluid supply. The other end of header 3 is bevelled, and secured thereto by welding or by any other suitable means is a cross tube 6, the latter being bevelled and secured to the header 4. A nipple 7 is connected to header 4 and cross tube 6 at their juncture for dis charging fluid from the unit. A cross tube 8 joins headers 3 and l. The cross tube 8 is bevelled at one of its ends and is secured to header S at that end. Header 3 is drilled,

SeriaLNo. 721,795.

extend through openings in the headers 3 r and t, the bevelled openings of adjacent tubes being so arranged that they face one another at the same ends to provide a path for the fluid such that it will progress from the inlet 5 of header 3 to the outlet 7 pass ing through the tubes in succession.

The element shown herein is designed to be placed in the water line between a hot water storage tank and the service line. A burner is then disposed beneath the element, so that heat from the burner is transferred through the walls to the water circulating to the element. Thus, water supplied to the tank is initially heated. The element may be put to other uses; thus, when submerged in a cooling fluid, hot liquids or fluids passed therethrough may be cooled by the transfer of heat from within the element through the walls thereof to the fluid on the outside. Other uses will be apparent to those skilled in the art.

It is obvious that the nature and position of the inlet and outlet is not a feature of invention, nor are the number of cross tubes. The tubes may be brazed or welded or other' wise secured to one another at their junctures with the headers, thereby providing fluid tight joints. Any slight leakage around the end of a tube within the header will not be detrimental. Furthermore, the spaces where leakage may occur would graduallylill up by scale or sediment lodging therein.

hat I claim is:

1. A heat exchange unit of the character described comprising a pair of spaced headers, a plurality of cross conduits joining said headers, said cross conduits being bevelled at their ends, extending into said headers and being arranged so that the openings of adjacent conduits at the same eIi ds face one another toprovide a sinuous path.

2. A heatexchange unit of the character described cgmprising a pair of spaced header pipes having corresponding longitudinally aligned openings therein, cross pipes bevelled at the ends extending into said openings and forming partition wallsacnoss said headers, said cross pipes being bevelled at their ends, the openings at the ends of each cross pipe facing in opposite directions and said pipes being arranged so that the openings oi adjacent pipes at the same ends face one another.

In. Witness that I claimv thev foregoing I 10 have hereunto subscribed my name this 28th day of May, 1924.

AARON F. NORTON. 

